CH-26
Acids and alkalis
Chemistry · Secondary 3 · Easy · Acids and alkalis
An aqueous solution of substance X turns red litmus paper blue and has a pH of 12. Which ion is present in high concentration in this solution?
- Hydrogen ions, H⁺
- Hydroxide ions, OH⁻
- Sulfate ions, SO₄²⁻
- Chloride ions, Cl⁻
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